package com.dzu.gulimall.member.exception;

/**
 * @author by ZhaoDong
 * @Classname UserNameExitsException
 * @Description 用户名已经存在异常
 * @Date 2021/6/25 20:47
 */
public class UserNameExitsException extends RuntimeException{
    public UserNameExitsException() {
        super("用户名存在");
    }
}
